All Z31 transmissions are completely interchangeable. They have no problems bolting up to the motor. The problem comes in when you try to mount the driveshaft. Each transmission has it's own output shaft size. Finding the appropriate driveshaft for a two seater is no problem. Just find another two seater that had the same transmission and take that driveshaft. If you have a four seater, you're going to have a more difficult time. Only in Canada did the North American market get a turbo four seater. And almost all of them were automatics. So you'll need to find the appropriate driveshaft for the transmission you just bought and have the driveshaft lengthened. If you get a FS5W71C, there are plenty of 2+2 5 speed models around. The only thing left is to determine if your differential companion flange is correct for the driveshaft.
FS5R30A TRANSMISSION 1ST GEAR 32T FITS NISSAN '86+ 6cyl FRONTIER 300ZX XTERRA HARDBODY PATHFINDER (NISV6-12). The king daddy of the Z31 manual transmissions is the FS5R30A. This transmission is the same design as the transmission used in the Z32 300ZX models. Only the gear ratios are different. There are Z32s running these transmissions with well over 600 horsepower and are not blowing them up. The Nissan FS5R30A is a popular transmission used in numerous Nissan vehicles, including the 300ZX (1986-1996), Nissan Pickup (1992-1997), Hardbody Pickup (1986-1997), Pathfinder (1986-2000), Frontier (1999+) and Xterra (2000-2004). FS5R30A TRANSMISSION WHINE This amended version of NTB97-009 updates the Parts Information and the Claims Information. Please discard all paper copies of NTB97-009. APPLIED VEHICLES: 1987-1995 Pathfinder (WD21) 4WD only 1986.5-1995 Truck (D21) 4WD only APPLIED DATE: Transmissions built before April 1, 1996 APPLIED ENGINE #: VG30.
There is also sometimes a problem when you try to mount the transmission to the body of the car. Some people have experienced issues with mounting the 87-89 transmissions into the 84-86 bodies. If the holes do not line up perfectly, you have several options. You can drill and tap new holes in the body (you might want to reinforce it). You can slot the holes in the transmission crossmember. Or you could stretch the bushing to mount it (not recommended).
The Z31 came with three different manual 5 speed transmissions and 2 different Automatics.
The Z31 came with three different manual 5 speed transmissions. All manual non-turbos used a 5 speed Nissan transmission (FS5W71C) which is quite reliable. The 84-86 manual turbos used a Borg-Warner T-5 5 speed (FS5R90A). The 87-89 manual turbo transmissions are a Nissan made (FS5R30A) model. Internally, they are the same as the Nissan transmission found in z32 turbos, trucks, pathfinders, etc. The 1987 model FS5R30A has a little different gear set than the 1988 and 1989.
Ipsec vpn client for mac. All manual transmissions have synchros on all forward gears. If you change the gear oil in your transmission on a semi-regular basis it should give you absolutely no trouble at all.
Manual Gear Ratios
FS5W71C | FS5R90A | FS5R30A | 1988-1989 Turbo |
3.321 | 3.324 | ||
2nd Gear | 2.056 | 2.077 | |
1.308 | 1.360 | ||
4th Gear | 1.000 | 1.000 | |
0.759 | 0.751 | ||
Reverse | 3.153 | 3.382 |
Manual Transmission Fluids Levels
Model Z31 | Fluid type |
4-1/4 pt | |
FS5R90A | 4 pt |
FS5R30A | 5-1/8 pt |
Manual Transmission Weight
1984 - 1986 Turbo T-5 FS5R90A | |
94lbs (No fluid, Clutch fork, Throwout bearing, or Shifter) | 102.2lbs with throw out bearing included and all switches (neutral, revrese, etc) Shifter Removed |
The Z31 was offered with two different Jatco Automatic Transmissions. They were both model E4N71B and featured and electronic lockup feature.
These transmissions are based on the light duty model L4N71B transmission used in the Datsun 810. The E4N71B can provide lockup in all forward speeds by using a microprocessor to electronicaly control the lockup.
The overdrive switch in the automatics has a temperature sensor that does not allow the transmission to shift into overdrive until it is sufficiently warmed up to avoid possible damage.
Level 10 use to makes an upgrade kit that would allow your transmission to hold up to 500+ hp but it is no longer available.
Scan network for mac.
Automatic Gear Ratios
4N71B | |
1st Gear | 2.458 |
1.458 | |
3rd Gear | 1.000 |
0.686 | |
Reverse | 2.400 |
Fs5r30a For Sale
Automatic Transmission Fluids Levels
4N71B | |
Auto Trans DEXRON | |
Capacity | 7-3/8 qt |
Specifications And Adjustments
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All Z31 transmissions are completely interchangeable. They have no problems bolting up to the motor. One problem is they don't always mount to the body correctly. You may have to drill and tap new holes for the transmission mount.
300zx 5 Speed Transmission
Transmission Mount Bolt Holes (1986 Non Turbo Automatic Model Shown with a FS5W71C Installed) |
Each transmission has it's own output shaft size and overall length. Finding the appropriate driveshaft for a two seater is no problem. Just find another two seater that had the same transmission and take that driveshaft. If you have a four seater, you're going to have a more difficult time. Only in Canada did the North American market get a turbo four seater. And almost all of them were automatics. So you'll need to find the appropriate driveshaft for the transmission you just bought and have the driveshaft lengthened. If you get a FS5W71C, there are plenty of 2+2 5 speed models around.
Fs5r30a Rebuild
The Z32 manual transmissions can also be installed although with some modification. A 89-91 Maxima SE Flywheel is needed as is modification to the stock shifter and transmission mount. More Information on this swap can be found here.